Pneumatic inner tube for tires.



No. 716,693. Patented Dec. 23, I902.

c. 5. A. ESSE.

.PNEUMATIC INNER TUBE FOR TIRES.

(Application filed my 16, 1902.)

(No Model.)

r W 9W6 TUE "DEN-5' P5755 '31.. neowurfla, WASHMSYOPL B. C.

PATENT OFFICE.

CHARLES EDWARD ADOLPHUS ESSE,

OF ORMSKIRK, ENGLAND, ASSIGNOR OF ONE-HALF TO JAMES HAMILTON OOBLEY, OF LONDON, ENGLAND.

PNEUMATlC INNER TUBE FOR TIRES.

SPECIFICATION forming part of Letters Patent No. 716,693, dated December 23, 1902. Application filed May l6 1902. Serial No. 107.670. (No model.)

10 all whom, it may concern:

Be it known that I, CHARLES EDWARD ADOLPHUS ESSE, brewer, asubject of the King of Great Britain, residing at Ormskirk, in the.

county of Lancaster, England,(whosefull postal address is 40 St. Helens road, Ormskirk aforesaid,) have invented certain new and useful Improvements in the Pneumatic Inner Tubes of Tires,(for which application has been made in Great Britain, No. 25,800, dated December 17, 1901,) of which the following is a specification.

With the usual inner tube of-bicycle-tires, especially when rim-brakes are used, the bicycle has almost to be taken to pieces in order to repair the inner tube. At any rate the inner tube cannot be taken out for the purpose of repair without a very large amount of time and trouble being spent over it.

Now this invention is designed to enable the inner tube to be taken out in a moment, carried to the water and tested or repaired, and then put back in an equally expeditious manner.

In the accompanying drawings, Figure 1 is anelevation of one end of the air-tube of my invention with the outer sleeve drawn forward ready for use; Fig. 2, the same, showing the outer sleeve pulled back; Fig. 3, an 0 elevation showing the opposite end of the airtube. Fig. 4 is a longitudinal section of my inner rubber tube with valve.

Referring to Figs. 1, 2, and 3 of the drawings, a is the inner rubber tube of a cycle- 5 tire,which is made of a long length with closed ends h. These closed ends overlap by an inch or two.

c is the inflation-valve, placed anywhere along the tube a, preferably within an inch or two from one end. One end of the tube is fitted or formed with a rubber sleeve or socket d, the valve 0 being provided near the opposite end. This rubber sleeve on opposite sides is provided with backings or strips eof can- 5 vas, leaving spaces 'rbetween of bare rubber, and a hole f is made in the sleeve through the canvas-covered part. The sleeve (1 is solutioned all around the tube at g for about half an inch-say from h to hso as to leave the end of the air-tube free all around inside the sleeve (2 between h and the end. This leaves a pocket or cavity 2' for the opposite tapering ends of the tube. The other or free end of the sleeve d is shaped sons to form tabs j, withembayments Z between,-which facilitates the valve being slipped through the hole f in the sleeve and also one end of the tube being placed in the pocket of the other.

at is a tongue-piece of canvas which is solutioned to the tube inside the sleeve d. This projects a little beyond the end of tube, and there is a hole 'It in this tongue-piece for the valve to be passed through. I In use the tube is laid around the rim and the sleeve 01. is drawn over the opposite end of the tube, so that the tube at one end overlaps the tube at the other end inside the pocket 2'. The valve 0 is pushed through the hole f in the sleeve e and in the hole n in the tongue m, the elasticity of the sleeve 61 facilitating the operation. This is done before inflation. By this means the two ends of the tube are coupled together and the obtaining of a complete annular tube is secured. The canvas strips e provide the tube with sufficient strength at the point where the sleeve is drawn over the opposite end of the tube, and yet allow of the sleeve in the intervals or spaces 7' between thestrips sufficient resilience to enable the valve 0 to be pushed through the hole f, also to freely allow for inflation. When the valve-shoe p has been slipped through holef, the two ends of the tube are pulled apart somewhat, so as'to bring the hole out of register with the shoe n, as shown in Fig. 4, thus locking the two ends together. Furthermore, by making the ends of the tube taper and overlapping each other I insure the ends fitting neatly together without there being any channels or depressions in the joint. The object of the tongue m is to enable the sleeve (1 to be turned inside out in order to expose the end of the tube inside the sleeve and enable it to be got at should repairs be necessary thereto. To do this, the tongue m is held firmly, and the tabs j of the sleeve are then laid hold of and the sleeve forcibly drawn back as far as it will go, and in so doing turning it inside out. This exposes the end of the tube which was previously inside the sleeve and enables any repairs to be effected should a puncture happen to take place at that part.

The mode of action is as follows: To replace or repair the inner tube, all that is necessary is to unfasten the outer covering from the rim. Then disconnect the two ends of the inner tube where they are coupled together, so that they become entirely separated and no longer form a complete ring. The tube can then be removed.

In the case of air-tubes with flat abutting ends instead of overlapping ones-that is, those that have one end provided with a rubber sleeve or socket for the reception of the opposite end of" the tube-the canvas strips 6 aforesaid can be applied to this sleeve, so as to provide it with sufficient strength at the point where the sleeve is drawn over the opposite end of the tube, and yet allow of the sleeve, by means of the intervals r between the strips, sufficient resilience to enable the valve to be pushed through the hole, also to freely allow for inflation. The fiat abutting ends are not, however, considered, as a rule, so desirable as the overlapping ones, as they are liable to leave channels or depressions at the joint. Instead, however, of the tube being free all around inside the sleeve, as described, the sleeve is, as shown in Fig. 4, solutioned to the tube from g to h, and about half of the end of the tube from h to h is solutioned to the inner side of the sleeve d, leaving the other half as a pocket or cavity for the reception of the opposite end of the tapering tube. In this case the tongue-piece of m is not required. The sleeve (1 cannot, however, be turned inside out in order to expose when required the end of the tube inside the sleeve or enable it to be got at should repairs be necessary thereto.

I declare that what I claim is 1. An inner tube for pneumatic tires, characterized by a long length with closed ends overlapping each other, the valve being placed near one end, and the other end formed with an elastic sleeve solutioned all around the tube at one part, so as to leave the extreme end free all around inside the sleeve to form a pocket for the reception of the opposite end of tube, and yet permit the outer sleeve to be drawn back so as to expose the end of the tube which was previously inside the sleeve to enable any repairs to be effected.

2. An inner air-tube for pneumatic tires, having a rubber sleeve at one end thereof for receiving the opposite end, the said sleeve bein g provided with backings of canvas with intervals between each piece so that while pro viding sufficient strength at the point where the sleeve is drawn over the opposite end of the tube, there will be enough elasticity to enable the valve to be pushed through a hole formed in the sleeve and also to allow for inflation.

3. An inner tube for pneumatic tires, comprising a long length with closed ends overlapping each other; a valve placed near one end thereof; an elastic sleeve secured to the opposite end of the tube, and a tongue-piece extending out from the tube beyond the sleeve, whereby if the tongue is held firmly, and the sleeve laid hold of, said sleeve can be forcibly drawn back, turning it inside out, substantially as described.

4. An inner tube for pneumatic tires comprising a long length of tube with closed ends overlapping each other, a valve placed near one end and the other end formed with an elastic sleeve to which one half of that end of the tube is solutioned, leaving the other half as a pocket for the reception of the opposite end of tube, the other end of sleeve being made with tabs with embayments between which facilitate the valve being slipped through a hole in the sleeve and one end of the tube being placed in the pocket of the other.

In witness whereof I have hereunto signed my name, this 7th day of May, 1902, in the presence of two subscribing witnesses.

CHARLES EDWARD ADOLPHUS ESSE.

Witnesses:

G. O. DYMOND, F. P. EVANS. 

